Without delay, let's solve this. We've got 290 and we will be multiplying it by 405, that is, adding 290 to itself 405 times.
Step 1: 0 + 290 = 290
Step 2: 290 + 290 = 580
Step 3: 580 + 290 = 870
Step 4: 870 + 290 = 1160
Step 5: 1160 + 290 = 1450
Step 6: 1450 + 290 = 1740
Step 7: 1740 + 290 = 2030
Step 8: 2030 + 290 = 2320
Step 9: 2320 + 290 = 2610
Step 10: 2610 + 290 = 2900
Step 11: 2900 + 290 = 3190
Step 12: 3190 + 290 = 3480
Step 13: 3480 + 290 = 3770
Step 14: 3770 + 290 = 4060
Step 15: 4060 + 290 = 4350
Step 16: 4350 + 290 = 4640
Step 17: 4640 + 290 = 4930
Step 18: 4930 + 290 = 5220
Step 19: 5220 + 290 = 5510
Step 20: 5510 + 290 = 5800
Step 21: 5800 + 290 = 6090
Step 22: 6090 + 290 = 6380
Step 23: 6380 + 290 = 6670
Step 24: 6670 + 290 = 6960
Step 25: 6960 + 290 = 7250
Step 26: 7250 + 290 = 7540
Step 27: 7540 + 290 = 7830
Step 28: 7830 + 290 = 8120
Step 29: 8120 + 290 = 8410
Step 30: 8410 + 290 = 8700
Step 31: 8700 + 290 = 8990
Step 32: 8990 + 290 = 9280
Step 33: 9280 + 290 = 9570
Step 34: 9570 + 290 = 9860
Step 35: 9860 + 290 = 10150
Step 36: 10150 + 290 = 10440
Step 37: 10440 + 290 = 10730
Step 38: 10730 + 290 = 11020
Step 39: 11020 + 290 = 11310
Step 40: 11310 + 290 = 11600
Step 41: 11600 + 290 = 11890
Step 42: 11890 + 290 = 12180
Step 43: 12180 + 290 = 12470
Step 44: 12470 + 290 = 12760
Step 45: 12760 + 290 = 13050
Step 46: 13050 + 290 = 13340
Step 47: 13340 + 290 = 13630
Step 48: 13630 + 290 = 13920
Step 49: 13920 + 290 = 14210
Step 50: 14210 + 290 = 14500
Step 51: 14500 + 290 = 14790
Step 52: 14790 + 290 = 15080
Step 53: 15080 + 290 = 15370
Step 54: 15370 + 290 = 15660
Step 55: 15660 + 290 = 15950
Step 56: 15950 + 290 = 16240
Step 57: 16240 + 290 = 16530
Step 58: 16530 + 290 = 16820
Step 59: 16820 + 290 = 17110
Step 60: 17110 + 290 = 17400
Step 61: 17400 + 290 = 17690
Step 62: 17690 + 290 = 17980
Step 63: 17980 + 290 = 18270
Step 64: 18270 + 290 = 18560
Step 65: 18560 + 290 = 18850
Step 66: 18850 + 290 = 19140
Step 67: 19140 + 290 = 19430
Step 68: 19430 + 290 = 19720
Step 69: 19720 + 290 = 20010
Step 70: 20010 + 290 = 20300
Step 71: 20300 + 290 = 20590
Step 72: 20590 + 290 = 20880
Step 73: 20880 + 290 = 21170
Step 74: 21170 + 290 = 21460
Step 75: 21460 + 290 = 21750
Step 76: 21750 + 290 = 22040
Step 77: 22040 + 290 = 22330
Step 78: 22330 + 290 = 22620
Step 79: 22620 + 290 = 22910
Step 80: 22910 + 290 = 23200
Step 81: 23200 + 290 = 23490
Step 82: 23490 + 290 = 23780
Step 83: 23780 + 290 = 24070
Step 84: 24070 + 290 = 24360
Step 85: 24360 + 290 = 24650
Step 86: 24650 + 290 = 24940
Step 87: 24940 + 290 = 25230
Step 88: 25230 + 290 = 25520
Step 89: 25520 + 290 = 25810
Step 90: 25810 + 290 = 26100
Step 91: 26100 + 290 = 26390
Step 92: 26390 + 290 = 26680
Step 93: 26680 + 290 = 26970
Step 94: 26970 + 290 = 27260
Step 95: 27260 + 290 = 27550
Step 96: 27550 + 290 = 27840
Step 97: 27840 + 290 = 28130
Step 98: 28130 + 290 = 28420
Step 99: 28420 + 290 = 28710
Step 100: 28710 + 290 = 29000
Step 101: 29000 + 290 = 29290
Step 102: 29290 + 290 = 29580
Step 103: 29580 + 290 = 29870
Step 104: 29870 + 290 = 30160
Step 105: 30160 + 290 = 30450
Step 106: 30450 + 290 = 30740
Step 107: 30740 + 290 = 31030
Step 108: 31030 + 290 = 31320
Step 109: 31320 + 290 = 31610
Step 110: 31610 + 290 = 31900
Step 111: 31900 + 290 = 32190
Step 112: 32190 + 290 = 32480
Step 113: 32480 + 290 = 32770
Step 114: 32770 + 290 = 33060
Step 115: 33060 + 290 = 33350
Step 116: 33350 + 290 = 33640
Step 117: 33640 + 290 = 33930
Step 118: 33930 + 290 = 34220
Step 119: 34220 + 290 = 34510
Step 120: 34510 + 290 = 34800
Step 121: 34800 + 290 = 35090
Step 122: 35090 + 290 = 35380
Step 123: 35380 + 290 = 35670
Step 124: 35670 + 290 = 35960
Step 125: 35960 + 290 = 36250
Step 126: 36250 + 290 = 36540
Step 127: 36540 + 290 = 36830
Step 128: 36830 + 290 = 37120
Step 129: 37120 + 290 = 37410
Step 130: 37410 + 290 = 37700
Step 131: 37700 + 290 = 37990
Step 132: 37990 + 290 = 38280
Step 133: 38280 + 290 = 38570
Step 134: 38570 + 290 = 38860
Step 135: 38860 + 290 = 39150
Step 136: 39150 + 290 = 39440
Step 137: 39440 + 290 = 39730
Step 138: 39730 + 290 = 40020
Step 139: 40020 + 290 = 40310
Step 140: 40310 + 290 = 40600
Step 141: 40600 + 290 = 40890
Step 142: 40890 + 290 = 41180
Step 143: 41180 + 290 = 41470
Step 144: 41470 + 290 = 41760
Step 145: 41760 + 290 = 42050
Step 146: 42050 + 290 = 42340
Step 147: 42340 + 290 = 42630
Step 148: 42630 + 290 = 42920
Step 149: 42920 + 290 = 43210
Step 150: 43210 + 290 = 43500
Step 151: 43500 + 290 = 43790
Step 152: 43790 + 290 = 44080
Step 153: 44080 + 290 = 44370
Step 154: 44370 + 290 = 44660
Step 155: 44660 + 290 = 44950
Step 156: 44950 + 290 = 45240
Step 157: 45240 + 290 = 45530
Step 158: 45530 + 290 = 45820
Step 159: 45820 + 290 = 46110
Step 160: 46110 + 290 = 46400
Step 161: 46400 + 290 = 46690
Step 162: 46690 + 290 = 46980
Step 163: 46980 + 290 = 47270
Step 164: 47270 + 290 = 47560
Step 165: 47560 + 290 = 47850
Step 166: 47850 + 290 = 48140
Step 167: 48140 + 290 = 48430
Step 168: 48430 + 290 = 48720
Step 169: 48720 + 290 = 49010
Step 170: 49010 + 290 = 49300
Step 171: 49300 + 290 = 49590
Step 172: 49590 + 290 = 49880
Step 173: 49880 + 290 = 50170
Step 174: 50170 + 290 = 50460
Step 175: 50460 + 290 = 50750
Step 176: 50750 + 290 = 51040
Step 177: 51040 + 290 = 51330
Step 178: 51330 + 290 = 51620
Step 179: 51620 + 290 = 51910
Step 180: 51910 + 290 = 52200
Step 181: 52200 + 290 = 52490
Step 182: 52490 + 290 = 52780
Step 183: 52780 + 290 = 53070
Step 184: 53070 + 290 = 53360
Step 185: 53360 + 290 = 53650
Step 186: 53650 + 290 = 53940
Step 187: 53940 + 290 = 54230
Step 188: 54230 + 290 = 54520
Step 189: 54520 + 290 = 54810
Step 190: 54810 + 290 = 55100
Step 191: 55100 + 290 = 55390
Step 192: 55390 + 290 = 55680
Step 193: 55680 + 290 = 55970
Step 194: 55970 + 290 = 56260
Step 195: 56260 + 290 = 56550
Step 196: 56550 + 290 = 56840
Step 197: 56840 + 290 = 57130
Step 198: 57130 + 290 = 57420
Step 199: 57420 + 290 = 57710
Step 200: 57710 + 290 = 58000
Step 201: 58000 + 290 = 58290
Step 202: 58290 + 290 = 58580
Step 203: 58580 + 290 = 58870
Step 204: 58870 + 290 = 59160
Step 205: 59160 + 290 = 59450
Step 206: 59450 + 290 = 59740
Step 207: 59740 + 290 = 60030
Step 208: 60030 + 290 = 60320
Step 209: 60320 + 290 = 60610
Step 210: 60610 + 290 = 60900
Step 211: 60900 + 290 = 61190
Step 212: 61190 + 290 = 61480
Step 213: 61480 + 290 = 61770
Step 214: 61770 + 290 = 62060
Step 215: 62060 + 290 = 62350
Step 216: 62350 + 290 = 62640
Step 217: 62640 + 290 = 62930
Step 218: 62930 + 290 = 63220
Step 219: 63220 + 290 = 63510
Step 220: 63510 + 290 = 63800
Step 221: 63800 + 290 = 64090
Step 222: 64090 + 290 = 64380
Step 223: 64380 + 290 = 64670
Step 224: 64670 + 290 = 64960
Step 225: 64960 + 290 = 65250
Step 226: 65250 + 290 = 65540
Step 227: 65540 + 290 = 65830
Step 228: 65830 + 290 = 66120
Step 229: 66120 + 290 = 66410
Step 230: 66410 + 290 = 66700
Step 231: 66700 + 290 = 66990
Step 232: 66990 + 290 = 67280
Step 233: 67280 + 290 = 67570
Step 234: 67570 + 290 = 67860
Step 235: 67860 + 290 = 68150
Step 236: 68150 + 290 = 68440
Step 237: 68440 + 290 = 68730
Step 238: 68730 + 290 = 69020
Step 239: 69020 + 290 = 69310
Step 240: 69310 + 290 = 69600
Step 241: 69600 + 290 = 69890
Step 242: 69890 + 290 = 70180
Step 243: 70180 + 290 = 70470
Step 244: 70470 + 290 = 70760
Step 245: 70760 + 290 = 71050
Step 246: 71050 + 290 = 71340
Step 247: 71340 + 290 = 71630
Step 248: 71630 + 290 = 71920
Step 249: 71920 + 290 = 72210
Step 250: 72210 + 290 = 72500
Step 251: 72500 + 290 = 72790
Step 252: 72790 + 290 = 73080
Step 253: 73080 + 290 = 73370
Step 254: 73370 + 290 = 73660
Step 255: 73660 + 290 = 73950
Step 256: 73950 + 290 = 74240
Step 257: 74240 + 290 = 74530
Step 258: 74530 + 290 = 74820
Step 259: 74820 + 290 = 75110
Step 260: 75110 + 290 = 75400
Step 261: 75400 + 290 = 75690
Step 262: 75690 + 290 = 75980
Step 263: 75980 + 290 = 76270
Step 264: 76270 + 290 = 76560
Step 265: 76560 + 290 = 76850
Step 266: 76850 + 290 = 77140
Step 267: 77140 + 290 = 77430
Step 268: 77430 + 290 = 77720
Step 269: 77720 + 290 = 78010
Step 270: 78010 + 290 = 78300
Step 271: 78300 + 290 = 78590
Step 272: 78590 + 290 = 78880
Step 273: 78880 + 290 = 79170
Step 274: 79170 + 290 = 79460
Step 275: 79460 + 290 = 79750
Step 276: 79750 + 290 = 80040
Step 277: 80040 + 290 = 80330
Step 278: 80330 + 290 = 80620
Step 279: 80620 + 290 = 80910
Step 280: 80910 + 290 = 81200
Step 281: 81200 + 290 = 81490
Step 282: 81490 + 290 = 81780
Step 283: 81780 + 290 = 82070
Step 284: 82070 + 290 = 82360
Step 285: 82360 + 290 = 82650
Step 286: 82650 + 290 = 82940
Step 287: 82940 + 290 = 83230
Step 288: 83230 + 290 = 83520
Step 289: 83520 + 290 = 83810
Step 290: 83810 + 290 = 84100
Step 291: 84100 + 290 = 84390
Step 292: 84390 + 290 = 84680
Step 293: 84680 + 290 = 84970
Step 294: 84970 + 290 = 85260
Step 295: 85260 + 290 = 85550
Step 296: 85550 + 290 = 85840
Step 297: 85840 + 290 = 86130
Step 298: 86130 + 290 = 86420
Step 299: 86420 + 290 = 86710
Step 300: 86710 + 290 = 87000
Step 301: 87000 + 290 = 87290
Step 302: 87290 + 290 = 87580
Step 303: 87580 + 290 = 87870
Step 304: 87870 + 290 = 88160
Step 305: 88160 + 290 = 88450
Step 306: 88450 + 290 = 88740
Step 307: 88740 + 290 = 89030
Step 308: 89030 + 290 = 89320
Step 309: 89320 + 290 = 89610
Step 310: 89610 + 290 = 89900
Step 311: 89900 + 290 = 90190
Step 312: 90190 + 290 = 90480
Step 313: 90480 + 290 = 90770
Step 314: 90770 + 290 = 91060
Step 315: 91060 + 290 = 91350
Step 316: 91350 + 290 = 91640
Step 317: 91640 + 290 = 91930
Step 318: 91930 + 290 = 92220
Step 319: 92220 + 290 = 92510
Step 320: 92510 + 290 = 92800
Step 321: 92800 + 290 = 93090
Step 322: 93090 + 290 = 93380
Step 323: 93380 + 290 = 93670
Step 324: 93670 + 290 = 93960
Step 325: 93960 + 290 = 94250
Step 326: 94250 + 290 = 94540
Step 327: 94540 + 290 = 94830
Step 328: 94830 + 290 = 95120
Step 329: 95120 + 290 = 95410
Step 330: 95410 + 290 = 95700
Step 331: 95700 + 290 = 95990
Step 332: 95990 + 290 = 96280
Step 333: 96280 + 290 = 96570
Step 334: 96570 + 290 = 96860
Step 335: 96860 + 290 = 97150
Step 336: 97150 + 290 = 97440
Step 337: 97440 + 290 = 97730
Step 338: 97730 + 290 = 98020
Step 339: 98020 + 290 = 98310
Step 340: 98310 + 290 = 98600
Step 341: 98600 + 290 = 98890
Step 342: 98890 + 290 = 99180
Step 343: 99180 + 290 = 99470
Step 344: 99470 + 290 = 99760
Step 345: 99760 + 290 = 100050
Step 346: 100050 + 290 = 100340
Step 347: 100340 + 290 = 100630
Step 348: 100630 + 290 = 100920
Step 349: 100920 + 290 = 101210
Step 350: 101210 + 290 = 101500
Step 351: 101500 + 290 = 101790
Step 352: 101790 + 290 = 102080
Step 353: 102080 + 290 = 102370
Step 354: 102370 + 290 = 102660
Step 355: 102660 + 290 = 102950
Step 356: 102950 + 290 = 103240
Step 357: 103240 + 290 = 103530
Step 358: 103530 + 290 = 103820
Step 359: 103820 + 290 = 104110
Step 360: 104110 + 290 = 104400
Step 361: 104400 + 290 = 104690
Step 362: 104690 + 290 = 104980
Step 363: 104980 + 290 = 105270
Step 364: 105270 + 290 = 105560
Step 365: 105560 + 290 = 105850
Step 366: 105850 + 290 = 106140
Step 367: 106140 + 290 = 106430
Step 368: 106430 + 290 = 106720
Step 369: 106720 + 290 = 107010
Step 370: 107010 + 290 = 107300
Step 371: 107300 + 290 = 107590
Step 372: 107590 + 290 = 107880
Step 373: 107880 + 290 = 108170
Step 374: 108170 + 290 = 108460
Step 375: 108460 + 290 = 108750
Step 376: 108750 + 290 = 109040
Step 377: 109040 + 290 = 109330
Step 378: 109330 + 290 = 109620
Step 379: 109620 + 290 = 109910
Step 380: 109910 + 290 = 110200
Step 381: 110200 + 290 = 110490
Step 382: 110490 + 290 = 110780
Step 383: 110780 + 290 = 111070
Step 384: 111070 + 290 = 111360
Step 385: 111360 + 290 = 111650
Step 386: 111650 + 290 = 111940
Step 387: 111940 + 290 = 112230
Step 388: 112230 + 290 = 112520
Step 389: 112520 + 290 = 112810
Step 390: 112810 + 290 = 113100
Step 391: 113100 + 290 = 113390
Step 392: 113390 + 290 = 113680
Step 393: 113680 + 290 = 113970
Step 394: 113970 + 290 = 114260
Step 395: 114260 + 290 = 114550
Step 396: 114550 + 290 = 114840
Step 397: 114840 + 290 = 115130
Step 398: 115130 + 290 = 115420
Step 399: 115420 + 290 = 115710
Step 400: 115710 + 290 = 116000
Step 401: 116000 + 290 = 116290
Step 402: 116290 + 290 = 116580
Step 403: 116580 + 290 = 116870
Step 404: 116870 + 290 = 117160
Step 405: 117160 + 290 = 117450

So, 290*405 = 117450